Oxfordiana A.R.T.Spencer & J.Hilton, 2017 genus doubtful

Encephalartopsis Fontaine, 1889 genus accepted

Zamiopsis Fontaine, 1889 genus accepted

Zamioidea J.Schuster, 1931 genus accepted

Glossozamites W.P.Schimper, 1870 genus accepted

Cretocycas M.Nishida, A.Yoshida & H.Nishida, 1996 genus doubtful

Fittonites Kuntze, 1903 genus doubtful

Leptocycas T.Delevoryas & R.C.Hope, 1971 genus accepted

Leprospermum O.Heer, 1877 genus accepted

Fascisvarioxylon K.P.Jain, 1964 genus accepted

Dioonites Miquel, 1851 genus accepted

Dichotozamites E.W.Berry, 1911 genus accepted

Eurycycadolepis (A.C.Seward) A.C.Seward, 1917 genus synonym

Menucoa B.Petriella, 1970 genus accepted

Beaniopsis P.N.Ganju, 1944 genus accepted

Triassiflorites W.Bock, 1969 genus accepted

Ceratozamites L.Meschinelli, 1889 genus accepted

Todda-Pana Adanson, 1763 genus doubtful

Eostangeria M.Barthel, 1976 genus doubtful

Cycadostrobilus J.N.Zhu, 1994 genus doubtful

Cycadospadix Schimper, 1870 genus accepted

Fascivarioxylon K.P.Jain, 1964 genus synonym

Cycadinocarpus W.P.Schimper, 1870 genus accepted

Eriozamia hort. ex J.Schust., 1932 genus accepted

Epicycas de Laub. genus synonym

Platypterygium Feistmantel, 1886 genus accepted

Microzamia Corda, 1846 genus accepted

Ctenophyllum Schimper, 1870 genus accepted

Ctenopsis Berry, 1911 genus accepted

Katakidozamia J.N.Haage & E.Schmidt ex Regel, 1876 genus doubtful

Dyerocycas Nakai genus synonym

Encephallartes Endl., 1842 genus doubtful

Todda-pana Adans. genus synonym

Arthrozamia Rchb., 1828 genus doubtful

Stanggeria Stevens, 1854 genus doubtful

Cycas L. genus accepted

Cycas yunnanensis species synonym

Eury-Cycadolepis (A.C.Seward) A.C.Seward, 1917 genus accepted

Sphenozamites Brongniart, 1849 genus doubtful